diff --git a/core/internal/protocol/proxy.go b/core/internal/protocol/proxy.go
index 87d1b65..4a78fc2 100644
--- a/core/internal/protocol/proxy.go
+++ b/core/internal/protocol/proxy.go
@@ -212,8 +212,9 @@ func ParseUDPMessage(msg []byte) (*UDPMessage, error) {
 		return nil, errors.ProtocolError{Message: "invalid address length"}
 	}
 	bs := buf.Bytes()
-	if len(bs) < int(lAddr) {
-		return nil, errors.ProtocolError{Message: "message length mismatch"}
+	if len(bs) <= int(lAddr) {
+		// We use <= instead of < here as we expect at least one byte of data after the address
+		return nil, errors.ProtocolError{Message: "invalid message length"}
 	}
 	m.Addr = string(bs[:lAddr])
 	m.Data = bs[lAddr:]